Instantiates a geometry asset based on a geometry asset definition.
| Name | Description | Default | Required |
|---|---|---|---|
| id | A string representing the unique identifier for this instance within the file. | None | no |
| url | A string representing the URI of the geometry asset definition to instantiate. | None | yes |
If the id property is not present, the geometry_instance becomes a reference used to look up a geometry instance within the currently loaded scene that uses the geometry definition given in the url field. Otherwise, it creates a new instance in the scene using the definition of the geometry asset given in the url field.
A geometry_instance may override any of the properties of the geometry asset it is based on, with the exception of the id property.
{
"id" : "myfigure",
"url" : "#speedy"
}